It's important to note that the most common problems with a Toyota RAV4 can vary depending on the model year and specific vehicle conditions. However, one recurring issue reported by some RAV4 owners involves excessive oil consumption, particularly in certain model years. Some drivers have experienced higher-than-normal oil consumption rates, which could potentially lead to engine issues if not addressed promptly. It's crucial for RAV4 owners to stay informed about any recalls or technical service bulletins related to their specific model year and address issues promptly through regular maintenance and servicing.